A complete list of versions existed long ago. It can be said that this is not interesting today.
Differences? They almost don't exist
Newer editions had better support for newer devices (at that time). And almost all of them were exclusively branded.
Spoiler: iGO 8 in general
8.0 R0 => 1st generation IGO 8
8.2 => China/Thailand build
8.3 R3 => 2nd generation IGO 8/Becker
8.4 => Amigo builds 8.5 => Becker only builds
8.5 => iGO Primo 1, 1.1...
Spoiler: iGO 8
8.0.0.109831 --- Aug 29, 2009 - PDA_R1_Patch
8.0.0.88902 --- May 6, 2009 - PDA_R1_Patch
8.0.0.71609 --- Jan 8, 2009 - PNA-Version
8.0.0.63379 --- Nov 18, 2008 - PNA-Version
8.0.0.61795 --- Oct 20, 2008 - Pioneer AVIC F500
8.0.0.33136 --- Mar 26, 2008
8.0.0.31442 --- Mar 13, 2008 - Original Retail -Version
8.0.0.30832 --- Mar 7, 2008 - PDA "Hewlett Packard iPAQ 314"
8.0.0.29000 --- Feb 26, 2008 - first numbered release
8.4.2.81333 --- Mar 12, 2009 - PNA "Navon"
8.4.2.78961 --- Feb 26, 2009 - Cebit 2009 Version
...
8.3.5.258186 --- Sep 13 2012 - Prestigio Brasil - 480*272 only
8.3.5.231128 --- Apr 20, 2012 - Navon
8.3.5.220904 --- Feb 2, 2012 - ASL
8.3.5.220097 --- Feb 2, 2012 - ASL
8.3.5.218975 --- Jan 18, 2012 - Uniden
8.3.5.199939 --- Jul 14, 2011 - Goldmaster
8.3.5.195552 --- Jun 9, 2011 - Go Cruise GPS-3506 (Aldi) PNA Australia
8.3.5.194796 --- Jun 3, 2011 - Airis
8.3.5.193799 --- May 27, 2011- Go Cruise (Aldi) PNA Australia
8.3.5.192519 --- May 18, 2011 - Navon PNA
8.3.5.183522 --- March 16, 2011 - Navon -
...
8.3.1.57289 --- Sep 23, 2008 -PNA "Becker Traffic Assist Z201"
8.3.1.56450 --- Sep 17, 2008 - PNA "Pearl NavGear GT-43/-35"
8.3.1.56007 --- Sep 12, 2008 - PNA "Magellan 4350/4370"
8.3.1.54971 --- Sep 5, 2008 - (Oasis)
8.3.1.54559 --- Sep 4, 2008 - PNA (Dimersion)
8.3.1.54384 --- Sep 3, 2008 - PNA "Prestigio Geovision 150/450"
8.3.1.53558 --- Aug 27, 2008 - (Oasis)- Multimedia Release
Spoiler: Primo 1/1.1
8.5.11.297713 --- April 29, 2013 - Zenec
8.5.11.262410 --- Oct 04, 2012 - Zenec
8.5.11.260737 --- Sep 25, 2012 - Alpine (800x480)
8.5.11.255392 --- Aug 31, 2012 - Zenec
8.5.11.216463 --- Dec 14, 2011 - Clarion
8.5.11.209632 --- Dec 14, 2011 - Apontador T500 / 501 (Primo 1.1)
8.5.11.198629 --- Jul 02, 2011 - Clarion
8.5.11.196434 --- Jun 17, 2011- Alpine-
8.5.11.187079 --- Apr 08, 2011 - Apontador Brazil T500 Unicoba
8.5.11.187078 --- Apr 08, 2011 - Navon GPS
8.5.11.182019 --- Mar 08, 2011 - Orion AVR 6.1
8.5.11.176142 --- Jan 24, 2011 - NNG Global
8.5.11.168090 --- Nov 17, 2010 - Primo 1.1 Update Pack
8.5.11.161797 --- Oct 13, 2010 - Primo 1.1 Update Pack
8.5.11.159172 --- ??? ??, 2010 - Primo 1.1 Uniden iGO50
8.5.11.155811 --- Aug 13, 2010 - Primo 1.1 - Green routing, bug fixes
8.5.11.154123 --- Aug 01, 2010 - Primo 1.1 - Green routing
8.5.9.153032 --- Jul 22, 2010 -
8.5.9.142948 --- May 11, 2010 -
8.5.9.130045 --- Feb 08, 2010 - CEBIT Demo release (expired 06/2010)
Spoiler: Primo 1.2
9.2.4.271232 --- Nov 26, 2012 - Goldmaster
9.2.0.224985 --- ???, 201? - Zenec
9.2.0.213495 --- Nov 17, 2011 - M3GPS i3
9.2.0.192885 --- May 20, 2011 - PNA NAVON
9.2.0.191493 --- May 11, 2011 - PNA
9.2.1.185801 --- Mar 29, 2011 - ALDI PNA AUSTRALIA
9.2.1.179499 --- Feb 15, 2011 - PNA "GoCruise"
9.2.1.178658 --- Feb 09, 2011 - PNA "Navgear GTX-60"
9.2.1.176668 --- Jan 27, 2011 - PNA Demo
Spoiler: Primo 2.0
9.6.5.365431 --- ??? ?? 2014 - Zenec (800x480) ---
9.6.5.333205 --- ??? ??, 2013 - Ducato EASINAV
9.8.0.323872 --- Ug 22 2013 - Alpine
9.6.5.306142 --- Jun 7, 2013 - Kia
9.6.5.299162 --- May 7, 2013 - Clarion
9.8.0.292314 --- Apr 5, 2013 - Alpine China build = Primo 2.0
9.6.10.289151 --- ???, 2013, Alpine W928R
9.6.5.278914 --- Jan 28, 2013 --- ESX
9.6.5.275111 --- Jan 3, 2013 --- Ssang Yong
9.6.5.273732 --- Dec ?? 2012 --- Clarion
9.8.2.272467 --- Dec 05 2012 --- Alpine 920
9.6.5.270089 --- Nov 21, 2012 ---- Clarion
9.6.5.263885 --- Oct 12, 2012 --- ??? Clarion
9.8.0.263875 --- Oct 12, 2012 --- ??? - China build ( or iGO Primo 9.8.0.263885 ??) = Primo 2.0
9.6.5.260040 --- Sept 21, 2012 --- ??? Aurora??
9.6.5.257901 --- Sept 13, 2012 --- Navon N760 Plus - Primo 2.0.1
9.6.5.257584 --- Sept 11, 2012 --- Aquarius
9.6.2.256445 --- ??? - Mappy
9.6.5.247774 --- Jul 17, 2012 --- Clarion NZ502E
9.6.5.245577 --- Jul 06, 2012 --- M3Tech: Altina A8010 = M3GPS (Asia) - Primo 2.1, also known as i3
9.6.5.243959 --- Jun 29, 2012 --- ???
9.6.5.242187 --- Jul 19, 2012 - Rosen Entertainment Systems - Primo 2.0.1
9.6.5.240968 --- Jun 14, 2012 - Clarion NX 502E - Primo 2.0.1
9.6.5.235215 --- May 14, 2012 - Mio S405
9.6.5.233301 --- May 02, 2012 - Navon N490 Plus - Navon N670 Plus - Primo 2.01
9.6.10.232425 --- Apr ??, 2012 -Alpine ????
9.6.5.231305 --- Apr 21, 2012- AlphaNav AN-5650NV - Primo 2.0.1
9.6.5.223767 --- Feb 24, 2012 - Clarion NX 602 - Primo 2.01
9.6.5.221194 --- Feb 07, 2012 - Vista Siga-Me Smart (Brasil device) - Primo 2.0.1
9.6.5.220934 --- ??? ?? 2012 --- Philips? 480x272
9.6.5.216230 --- Dec 14, 2011 --- Magneo (Russia) ==> date is the same than previous build 8.5 11.209632
9.6.5.214202 --- Nov 24, 2011 - Airis W4 - Primo 2.01
9.6.5.212773 --- Nov 10, 2011 --- NavGear 800x480 "9.6.5.211211 --- Dec 07, 2011
9.6.2.209584 --- Oct 12, 2011 - Go Cruise 1602BT (Australia) - Primo 2.0.0
9.6.2.205481 --- Sep 09, 2011 - Mappy Ulti 509 - Primo 2.0.0
9.6.2.202144 --- Aug 05, 2011 - (Becker?) Demo build
Spoiler: Primo 2.4
9.6.13.491814 --- 02 Feb 2015 - Blaupunkt 845
9.6.5.481357 --- 27 Jan 2015 - Clarion
9.6.30.462695 --- 21 Jan 2015 - Alpine 800*480
9.6.5.430095 --- ??? ?? 2014 - Zenec Z-E2015 (800x480)
9.6.13.405512 --- Jun 18 2014 - Honda Civic Reborn
9.6.13.404484 --- Jun ?? 2014 - Isuzu
9.6.21.397588 --- ??? ?? 2014 - Alpine ???
9.8.0.377454 --- Mar 17, 2014 - YESIGO Primo - Taiwan Version - !! only WinCE6 (and PC??), only 9.8.0 licenses
9.6.13.351648 --- Dec 4, 2013 - Goldmaster
9.6.13.338063 --- Oct ?? 2013 - Navon
9.6.13.290290 --- Mar 27, 2013 -Advent
9.6.13.280023 --- ???, 2013 - Mappy
9.6.13.268494 --- Nov ??, 2012 --- Dynavin N6 ?
9.6.13.267029 --- Nov 6, 2012 --- Navitech 800*480
9.6.12.243837 --- Jun 29, 2012 --- Navitech qx v-712 = Turkish market device - also Delco_QX-B441
etc, there was a looong list of iGO8, Becker editions and other
Bookmarks